The one time when I created an application that would send SMS messages (about 2 years ago, for a previous employer) I used a special hardware box which had a build-in SIM card. I had to send commands to a special driver for it, for which I had to convert the C API to Delphi but once I had it working, I had no real problems with it anymore. Only drawback: the charges you get per sent SMS. But then again, your messages aren't routed through some obscure website and/or used for data mining by the providers of those services... Besides, this solution would send the SMS messages a bit faster, unless you're trying to send to hundreds of different persons.
On 10/15/07, Wilson, Stephen <[EMAIL PROTECTED]> wrote: > Hi all > > I've been asked to create a fairly simple sms messaging program that will > alert clients' mobile phones when particular circumstances occur. Having > absolutely no previous experience programming such apps I have been googling > for info to help me. I found developershome.com/sms/ quite useful for > gaining a beginner's insight, and at first glance setting up an app to use > sms over http or https seems relatively trivial. My questions, then. to > those with experience are: am I wrong? are there pitfalls I should be > considering? are there reasons why another protocol should be used? do you > know a good source of information . . . . ? > Thanks for any help you can provide. > > Regards > > Steve >

